March 26, 2024—KB5035942 (OS Builds 22621.3374 and 22631.3374) Preview

March 26, 2024—KB5035942 OS Builds 22621.3374 and 22631.3374 Preview Applies To Windows 11 version 22H2, all editions Windows 11 version 23H2, all editions Note 2/27/24 IMPORTANT: New dates for the end of non-security updates for Windows 11, version 22H2 The new end date is June 24, 2025 for...

March 25, 2024—KB5037425 (OS Build 17763.5579) Out-of-band

March 25, 2024—KB5037425 OS Build 17763.5579 Out-of-band Applies To Win 10 Ent LTSC 2019 Win 10 IoT Ent LTSC 2019 Windows 10 IoT Core LTSC Windows Server 2019 Note 11/17/20 For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality...

January 9, 2024-KB5034275 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2

January 9, 2024-KB5034275 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2 Applies To .NET Note Release Date: January 9, 2024 Version: .NET Framework 3.5, 4.8 and 4.8.1 Summary This article describes the security and cumulative update for 3.5, 4.8 and 4.8.1 for...

January 9, 2024-KB5034273 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows 10, version 1809 and Windows Server 2019

January 9, 2024-KB5034273 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows 10, version 1809 and Windows Server 2019 Applies To .NET Note Release Date: January 9, 2024 Version: .NET Framework 3.5, 4.7.2 and 4.8 Summary This article describes the security and cumulative update fo...

January 9, 2024-KB5033917 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system, version 23H2

January 9, 2024-KB5033917 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system, version 23H2 Applies To .NET Note Release Date: January 9, 2024 Version: .NET Framework 3.5 and 4.8.1 The January 9, 2024 update for Microsoft server operating system, version 23H2...

January 9, 2024-KB5033920 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 and Windows 11, version 23H2

January 9, 2024-KB5033920 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 and Windows 11, version 23H2 Applies To .NET Note Revised July 7, 2025: Updated 'How to get this update' section. Note Release Date: January 9, 2024 Version: .NET Framework 3.5 and 4.8.1 The...

January 9, 2024-KB5034272 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Azure Stack HCI, version 22H2

January 9, 2024-KB5034272 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Azure Stack HCI, version 22H2 Applies To .NET Note Release Date: January 9, 2024 Version: .NET Framework 3.5, 4.8 and 4.8.1 Summary This article describes the security and cumulative update for 3.5, 4.8 and 4.8....

January 9, 2024-Security Only Update for .NET Framework 2.0, 3.0, 3.5 SP1, 4.6.2 for Windows Server 2008 SP2 (KB5034270)

January 9, 2024-Security Only Update for .NET Framework 2.0, 3.0, 3.5 SP1, 4.6.2 for Windows Server 2008 SP2 KB5034270 Applies to: Microsoft .NET Framework 2.0 Microsoft .NET Framework 3.0 Microsoft .NET Framework 3.5 SP1 Microsoft .NET Framework 4.6.2 REMINDER Windows Embedded 7 Standard and...

January 9, 2024-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 (KB5034278)

January 9, 2024-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 KB5034278 Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET Framework 4.7.2...

January 9, 2024-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 R2 (KB5034279)

January 9, 2024-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 R2 KB5034279 Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET Framework 4.7.2...

January 9, 2024—KB5034134 (OS Build 10240.20402) - EXPIRED

January 9, 2024—KB5034134 OS Build 10240.20402 - EXPIRED Applies To Windows 10 EXPIRATION NOTICE IMPORTANT As of January 27, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of...

January 9, 2024-KB5033910 Cumulative Update for .NET Framework 4.8 for Windows 10, version 1607 and Windows Server 2016

January 9, 2024-KB5033910 Cumulative Update for .NET Framework 4.8 for Windows 10, version 1607 and Windows Server 2016 Applies To .NET Note Release Date: January 9, 2024 Version: .NET Framework 4.8 The January 9, 2024 update for Windows 10, version 1607 and Windows Server 2016 includes security...

January 9, 2024-KB5034274 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2

January 9, 2024-KB5034274 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 Applies To .NET Note Release Date: January 9, 2024 Version: .NET Framework 3.5, 4.8 and 4.8.1 Summary This article describes the security and cumulative update for 3.5, 4.8 and 4.8.1 for...

January 9, 2024-KB5034276 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 11, version 21H2

January 9, 2024-KB5034276 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 11, version 21H2 Applies To .NET Note Release Date: January 9, 2024 Version: .NET Framework 3.5, 4.8 and 4.8.1 Summary This article describes the security and cumulative update for 3.5, 4.8 and 4.8.1 for...

January 9, 2024-Security and Quality Rollup for .NET Framework 2.0, 3.0, 3.5 SP1, 4.6.2 for Windows Server 2008 SP2 (KB5034280)

January 9, 2024-Security and Quality Rollup for .NET Framework 2.0, 3.0, 3.5 SP1, 4.6.2 for Windows Server 2008 SP2 KB5034280 Applies to: Microsoft .NET Framework 2.0 Microsoft .NET Framework 3.0 Microsoft .NET Framework 3.5 SP1 Microsoft .NET Framework 4.6.2 REMINDER Windows Embedded 7 Standard...

January 9, 2024-Security Only Update for .NET Framework 3.5.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Embedded 7 Standard and Windows Server 2008 R2 SP1 (KB5034269)

January 9, 2024-Security Only Update for .NET Framework 3.5.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Embedded 7 Standard and Windows Server 2008 R2 SP1 KB5034269 Applies to: Microsoft .NET Framework 3.5.1 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7...

January 9, 2024-Security and Quality Rollup for .NET Framework 3.5.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Embedded 7 Standard and Windows Server 2008 R2 SP1 (KB5034277)

January 9, 2024-Security and Quality Rollup for .NET Framework 3.5.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Embedded 7 Standard and Windows Server 2008 R2 SP1 KB5034277 Applies to: Microsoft .NET Framework 3.5.1 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET...

January 9, 2024—KB5034119 (OS Build 14393.6614) - EXPIRED

January 9, 2024—KB5034119 OS Build 14393.6614 - EXPIRED Applies To Windows 10, version 1607, all editions Windows Server 2016, all editions EXPIRATION NOTICE IMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommen...

March 22, 2024—KB5037423 (OS Build 14393.6799) Out-of-band

March 22, 2024—KB5037423 OS Build 14393.6799 Out-of-band Applies To Windows 10, version 1607, all editions Windows Server 2016, all editions Note 11/19/20 For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For...

March 22, 2024—KB5037422 (OS Build 20348.2342) Out-of-band

March 22, 2024—KB5037422 OS Build 20348.2342 Out-of-band Applies To Windows Server 2022 Note For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows Server 2022, see its update history...

KB5037426: Update to address a known issue that affects LSASS in Windows Server 2012 R2

KB5037426: Update to address a known issue that affects LSASS in Windows Server 2012 R2 Summary This update addresses a known issue that affects the Local Security Authority Subsystem Service LSASS. It might leak memory on domain controllers DCs. This issue occurs after you install KB5035885 Marc...

March 12, 2024—KB5035849 (OS Build 17763.5576) - EXPIRED

March 12, 2024—KB5035849 OS Build 17763.5576 - EXPIRED Applies To Win 10 Ent LTSC 2019 Win 10 IoT Ent LTSC 2019 Windows 10 IoT Core LTSC Windows Server 2019 Note EXPIRATION NOTICE IMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release...

March 12, 2024—KB5035845 (OS Builds 19044.4170 and 19045.4170) - EXPIRED

March 12, 2024—KB5035845 OS Builds 19044.4170 and 19045.4170 - EXPIRED Applies To Windows 10 Enterprise and Education, version 21H2 Windows 10 IoT Enterprise, version 21H2 Windows 10 Enterprise Multi-Session, version 21H2 Windows 10, version 22H2, all editions Windows 10 Enterprise LTSC 2021...

March 12, 2024—KB5035854 (OS Build 22000.2836)

March 12, 2024—KB5035854 OS Build 22000.2836 Applies To Windows 11 version 21H2, all editions Note For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 11, version 21H2, see its update...

Description of the security update for SharePoint Server 2019: March 12, 2024 (KB5002562)

Description of the security update for SharePoint Server 2019: March 12, 2024 KB5002562 Applies To SharePoint Server 2019 Summary This security update resolves a Microsoft SharePoint Server remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common...

Description of the security update for SharePoint Enterprise Server 2016: March 12, 2024 (KB5002559)

Description of the security update for SharePoint Enterprise Server 2016: March 12, 2024 KB5002559 Applies To SharePoint Server 2016 Summary This security update resolves a Microsoft SharePoint Server remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common...

March 12, 2024—KB5035933 (Security-only update)

March 12, 2024—KB5035933 Security-only update Applies To Windows Server 2008 Premium Assurance Note Reminder Windows Server 2008 SP2 Extended Security Updates ESU third and final year ended on January 10, 2023. Additionally, Extended Security Updates on Azure only support ended on January 9, 2024...

March 12, 2024— Hotpatch KB5035959 (OS Build 20348.2333)

March 12, 2024— Hotpatch KB5035959 OS Build 20348.2333 Applies To Windows Server 2022 Datacenter: Azure Edition Improvements and fixes This security update includes quality improvements. When you install this KB: This update makes miscellaneous security improvements to internal OS functionality. ...

.NET 8.0 Update - March 12, 2024 (KB5036452)

.NET 8.0 Update - March 12, 2024 KB5036452 NET 8.0 has been refreshed with the latest update as of March 12, 2024. This update contains both security and non-security fixes. See the release notes for details on updated packages. .NET 8.0 servicing updates are upgrades. The latest servicing update...

.NET 7.0 Update - March 12, 2024 (KB5036451)

.NET 7.0 Update - March 12, 2024 KB5036451 NET 7.0 has been refreshed with the latest update as of March 12, 2024. This update contains both security and non-security fixes. See the release notes for details on updated packages. .NET 7.0 servicing updates are upgrades. The latest servicing update...

March 12, 2024—KB5035930 (Monthly Rollup)

March 12, 2024—KB5035930 Monthly Rollup Applies To Windows Server 2012 ESU Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled device that is running Windows Server 2012. For a successful installation, please make sure all...

Service Update 1.26 for Microsoft Dynamics CRM (on-premises) 9.1

Service Update 1.26 for Microsoft Dynamics CRM on-premises 9.1 Dynamics 365 Introduction Service Update 9.1.26 for Microsoft Dynamics CRM on-premises 9.1 is now available. This article describes the hotfixes and updates that are included in Service Update 9.1.26.23 More information Update package...

March 12, 2024—KB5035919 (Security-only update)

March 12, 2024—KB5035919 Security-only update Applies To Windows Server 2008 R2 Premium Assurance Note Reminder As of January 10, 2023, Microsoft no longer provides security updates or technical support for Windows 7 Service Pack 1 SP1. We recommend that you upgrade to a supported version of...

March 12, 2024—KB5035853 (OS Builds 22621.3296 and 22631.3296)

March 12, 2024—KB5035853 OS Builds 22621.3296 and 22631.3296 Applies To Windows 11 version 22H2, all editions Windows 11 version 23H2, all editions Note 2/27/24 IMPORTANT: New dates for the end of non-security updates for Windows 11, version 22H2 The new end date is June 24, 2025 for Windows 11,...

March 12, 2024—KB5035857 (OS Build 20348.2340)

March 12, 2024—KB5035857 OS Build 20348.2340 Applies To Windows Server 2022 Note NEW 3/22/24 IMPORTANT If you plan to install this update on a domain controller DC, we highly recommend that you install KB5037422 instead March 22, 2024. This out-of-band update addresses a known issue that affects...

March 12, 2024—KB5035888 (Monthly Rollup)

March 12, 2024—KB5035888 Monthly Rollup Applies To Windows Server 2008 R2 Premium Assurance Note Reminder As of January 10, 2023, Microsoft no longer provides security updates or technical support for Windows 7 Service Pack 1 SP1. We recommend that you upgrade to a supported version of Windows. F...

March 12, 2024—KB5035885 (Monthly Rollup)

March 12, 2024—KB5035885 Monthly Rollup Applies To Windows Server 2012 R2 ESU Note IMPORTANT If you plan to install this update on a domain controller DC, we highly recommend that you install update KB5037426 instead March 22, 2024. This out-of-band update addresses a known issue that affects the...

Description of the security update for SharePoint Server Subscription Edition: March 12, 2024 (KB5002564)

Description of the security update for SharePoint Server Subscription Edition: March 12, 2024 KB5002564 Applies To SharePoint Server Subscription Edition Summary This security update resolves a Microsoft SharePoint Server remote code execution vulnerability. To learn more about the vulnerability,...

Hotfix update for Exchange Server 2019 and 2016: April 23, 2024 (KB5037224)

Hotfix update for Exchange Server 2019 and 2016: April 23, 2024 KB5037224 Applies To Exchange Server 2019 Exchange Server 2016 Hotfix update for Microsoft Exchange Server 2019 and 2016 was released on April 23, 2024. It includes fixes for non-security issues and introduces new features. These fix...

March 12, 2024—KB5035856 (OS Build 25398.763)

March 12, 2024—KB5035856 OS Build 25398.763 Applies To Windows Server, version 23H2 Note For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows Server, version 23H2, see its update histo...

March 12, 2024—KB5035858 (OS Build 10240.20526) - EXPIRED

March 12, 2024—KB5035858 OS Build 10240.20526 - EXPIRED Applies To Windows 10 EXPIRATION NOTICE IMPORTANT As of January 27, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of...

March 12, 2024—KB5035855 (OS Build 14393.6796) - EXPIRED

March 12, 2024—KB5035855 OS Build 14393.6796 - EXPIRED Applies To Windows 10, version 1607, all editions Windows Server 2016, all editions EXPIRATION NOTICE IMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend...

March 12, 2024—KB5035920 (Monthly Rollup)

March 12, 2024—KB5035920 Monthly Rollup Applies To Windows Server 2008 Premium Assurance Note Reminder Windows Server 2008 SP2 Extended Security Updates ESU third and final year ended on January 10, 2023. Additionally, Extended Security Updates on Azure only support ended on January 9, 2024. For...

KB5035969: Servicing stack update for Windows Server 2012: March 12, 2024

KB5035969: Servicing stack update for Windows Server 2012: March 12, 2024 REMINDER Windows Server 2012 reached end of support EOS on October 10, 2023. Extended Security Updates ESUs are available for purchase and will continue for three years, renewable on an annual basis, until the final date on...

Description of Security Update 1 for Exchange Server 2019: March 12, 2024 (KB5036401)

Description of Security Update 1 for Exchange Server 2019: March 12, 2024 KB5036401 Applies To Exchange Server 2019 This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and Exposures...

.NET 6.0 Update - March 12, 2024 (KB5036450)

.NET 6.0 Update - March 12, 2024 KB5036450 .NET 6.0 has been refreshed with the latest update as of March 12, 2024. This update contains non-security fixes. See the release notes for details on updated packages. .NET 6.0 servicing updates are upgrades. The latest servicing update for 6.0 will...

KB5035966: Servicing stack update for Windows 10: March 12, 2024

KB5035966: Servicing stack update for Windows 10: March 12, 2024 Applies To Windows 10 Win 10 IoT Ent LTSB 2015 Note REMINDER Windows 10, version 1507 reached the end of support EOS on May 9, 2017 for devices running the Pro, Home, Enterprise, Education, and Enterprise LoT editions. After April 9...

KB5035962: Servicing stack update for Windows 10, version 1607 and Server 2016: March 12, 2024

KB5035962: Servicing stack update for Windows 10, version 1607 and Server 2016: March 12, 2024 Applies To Win 10 Ent LTSB 2016 Win 10 IoT Ent LTSB 2016 Windows Server 2016 Note REMINDER Windows 10, version 1607 Mobile and Mobile Enterprise editions reached the end of support EOS on October 9, 201...

Description of Security Update 5 for Exchange Server 2019: March 12, 2024 (KB5036402)

Description of Security Update 5 for Exchange Server 2019: March 12, 2024 KB5036402 Applies To Exchange Server 2019 This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and Exposures...

KB5035968: Servicing stack update for Windows Server 2012 R2: March 12, 2024

KB5035968: Servicing stack update for Windows Server 2012 R2: March 12, 2024 REMINDER Windows 8.1 reached end of support EOS on January 10, 2023, at which point technical assistance and software updates are no longer provided. If you have devices running Windows 8.1, we recommend upgrading them t...